#screen {
    width: 450px;
    height: 50px;
    margin-top: 10px;
    background-color: rgba(255,255,255,0.8);
    font-size: 22px;
    line-height: 50px;
    text-align: center;
    border-radius: 10px;
    justify-content: center;
    align-items: center;
    caret-color: transparent;
}

#backBtn {
    width: 150px;
    height: 50px;
    font-size: 20px;
    color: black;
    background-color: rgb(241 170 40);
    border: none;
    outline: none;
    border-radius: 10px;
    float: left;

    line-height: 50px;
    text-align: center;
    margin-top: 20px;
}

#historyBtn {
     width: 150px;
     height: 50px;
     font-size: 20px;
     color: black;
     background-color: rgb(241 170 40);
     border: none;
     outline: none;
     border-radius: 10px;
     float: right;

     line-height: 50px;
     text-align: center;
     margin-top: 20px;
 }

.tips {
    width: 150px;
    text-align:right;
    caret-color: transparent;
}
.nav>.short-space {
    width: 56%;
    display: inline;
}
.nav>.surrender {
    width: 80px;
    display: inline;
    color: #c0c0c0;
    caret-color: transparent;
}


.container>.left{
    width: 20%;
    height: 70%;
    align-items: center;
    margin-right: 10px;
    caret-color: transparent;
    /* border: 1px solid green; */
}


.container>.left>.card_up{
    width: 100%;
    height: 150px;
    background-color: rgba(255,255,255,0.6);
    padding: 20px;
    text-align: left;
    border-radius: 10px;
    margin-bottom: 150px;
}
.left>.card_up>h3{
    margin: 10px 0;
}
.left>.card_up>h4{
    margin: 10px 0;
}
.left>.card_up>.row {
    width: 100px;
    height: 30px;
    margin: 10px 0;
    display: flex;
    justify-content: space-between;
}


.container>.left>.card_down{
    width: 100%;
    height: 150px;
    background-color: rgba(255,255,255,0.6);
    padding: 20px;
    text-align: left;
    border-radius: 10px;
    /*margin-bottom: 20px;*/
}
.left>.card_down>h3{
    margin: 10px 0;
}
.left>.card_down>div{
    margin: 10px 0;
}




.container>.right{
    width: 20%;
    height: 450px;
    align-items: center;
    margin-left: 10px;
    caret-color: transparent;
    /*display: none;*/
    /* border: 1px solid green; */
}


.container>.right>.chatroom{
    width: 120%;
    height: 450px;
    background-color: rgba(255,255,255,0.6);
    padding: 20px;
    border-radius: 10px;
    /*margin-bottom: 20px;*/
}
.right>.chatroom>h3{
    margin: 10px 0;
    text-align: left;
}
.right>.chatroom>div{
    width: 210px;
    margin: 10px 0;
}